the sword craft online server is no-premium?
If you are reffering to a paid copy of Minecraft, then no. You need a official paid copy of the game to join.
Could you give me a copy of server in order to play with my friends no-premium please??
I'm afraid I cant do that sorry :/ You could set one up yourself though and play on survival ^^
yes, but I was think to play in a custom map with NPCs
I can't install the optifine, what is the cuase?
idk but I dont fix optifine related issues because there are too many mostly linked to your perosnal setup ^^